1) manning roughness
曼宁糙率
2) Manning roughness factor
曼宁糙率系数
3) roughness coefficient
糙率
1.
Relationship between height of vegetation after deflection and roughness coefficient of vegetated channels in submerged state;
淹没状态下河道植物偏斜高度与糙率的关系
2.
Analysis of the regularity of the river roughness coefficient in the Aletain mountainous area in Xinjiang;
新疆阿勒泰山区河流糙率规律浅析
4) roughness
[英]['rʌfnis] [美]['rʌfnɪs]
糙率
1.
Experimental study on hydraulic roughness of revetment with grass cover;
草皮护坡水力糙率实验研究
2.
Experimental analysis on influence from sudden change of roughness of open channel bottom on friction velocity of turbulent flow and wall shear stress;
明渠渠底糙率突变对紊流摩阻流速及壁面切应力影响的试验分析
3.
Determination of roughness of river network based on comprehensive multi-factor fuzzy evaluation;
基于多因素模糊综合评判的河网糙率求解
5) Manning formula
曼宁公式
1.
The outcomes show that a) to use Manning formula to calculate the bankfull discharge of such major bed of the lower Yellow River will have a big deviation;b) it considers that relative stage-discharge curve,which reflects section and absolute elevation not affecting the curve is changed gradually;.
结论认为:①用曼宁公式等方法计算诸如黄河下游河道这样的河流大断面的平滩流量会带来很大的偏差;②用相对水位流量关系来反映断面与绝对高程无关的水位流量关系,认为相对水位流量关系沿程是逐渐变化的;③提出了在汛期利用经过分析取舍后的出水高度资料计算平滩流量的实时校正的方法,但这种方法计算的平滩流量多数情况下偏于保守;④新方法的计算结果很大程度上依赖于观测资料的精度和可靠性,因此,在利用实测资料之前需要对其进行具体分析。
2.
Manning formula is often chosen to determine ti.
河流的非稳定流解析中经常采用曼宁公式来计算阻力项，但对宽浅型河流直接用曼宁公式将得出不合理的结果。
6) Manning coefficient
曼宁系数
1.
Effect of Eichhornia Crassipes on Manning coefficient in open channel;
布袋莲对渠槽曼宁系数之影响
2.
The results showed that straw mulch affected the velocity and Manning coefficient significantly.
结果表明,有无秸秆覆盖对土壤地表径流速度和曼宁系数影响明显:1)0~30%覆盖度之间,流速随着覆盖度的增大迅速降低,而曼宁系数随着覆盖度的增大迅速增大;30%~90%覆盖度之间,流速随着覆盖度的增大降低缓慢,但曼宁系数随覆盖度增大而在高位小幅振荡。
补充资料：糙率
见谢才公式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条